﻿using System;
using System.Data;
using System.Text;
using System.Data.SqlClient;
using Maticsoft.DBUtility;
using System.Collections.Generic;//Please add references
namespace Taxes.DAL
{
    /// <summary>
    /// 数据访问类:region_info
    /// </summary>
    public partial class region_info
    {
        public region_info()
        { }
        #region  Method

        /// <summary>
        /// 得到最大ID
        /// </summary>
        public int GetMaxId()
        {
            return DbHelperSQL.GetMaxID("ID", "region_info");
        }

        /// <summary>
        /// 是否存在该记录
        /// </summary>
        public bool Exists(int ID)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) from region_info");
            strSql.Append(" where ID=@ID");
            SqlParameter[] parameters = {
					new SqlParameter("@ID", SqlDbType.Int,4)
};
            parameters[0].Value = ID;

            return DbHelperSQL.Exists(strSql.ToString(), parameters);
        }


        /// <summary>
        /// 增加一条数据
        /// </summary>
        public int Add(Taxes.Model.region_info model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("insert into region_info(");
            strSql.Append("region_name,region_value,region_unit_price,in_date)");
            strSql.Append(" values (");
            strSql.Append("@region_name,@region_value,@region_unit_price,@in_date)");
            strSql.Append(";select @@IDENTITY");
            SqlParameter[] parameters = {
					new SqlParameter("@region_name", SqlDbType.VarChar,50),
					new SqlParameter("@region_value", SqlDbType.VarChar),
					new SqlParameter("@region_unit_price", SqlDbType.Decimal,9),
					new SqlParameter("@in_date", SqlDbType.DateTime)};
            parameters[0].Value = model.region_name;
            parameters[1].Value = model.region_value;
            parameters[2].Value = model.region_unit_price;
            parameters[3].Value = model.in_date;

            object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters);
            if (obj == null)
            {
                return 0;
            }
            else
            {
                return Convert.ToInt32(obj);
            }
        }
        /// <summary>
        /// 更新一条数据
        /// </summary>
        public bool Update(Taxes.Model.region_info model)
        {
            StringBuilder strSql = new StringBuilder();
            var collection = new List<SqlParameter>();
            strSql.Append("update region_info set ");
            if (!String.IsNullOrEmpty(model.region_name))
            {
                strSql.Append("region_name=@region_name,");
                collection.Add(new SqlParameter("@region_name", SqlDbType.VarChar, 50) { Value = model.region_name });
            }

            strSql.Append("region_unit_price=@region_unit_price,");
            collection.Add(new SqlParameter("@region_unit_price", SqlDbType.Decimal, 9) { Value = model.region_unit_price });
            if (!String.IsNullOrEmpty(model.region_value))
            {
                strSql.Append("region_value=@region_value,");
                collection.Add(new SqlParameter("@region_value", SqlDbType.VarChar) { Value = model.region_value });
            }
            if (model.in_date.HasValue)
            {
                strSql.Append("in_date=@in_date");
                collection.Add(new SqlParameter("@in_date", SqlDbType.DateTime) {Value =model.in_date.Value});
            }

            strSql.Append(" where ID=@ID");
            collection.Add(new SqlParameter("@ID", SqlDbType.Int, 4) { Value = model.ID });


            int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), collection.ToArray());
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }

        public bool DeleteAll()
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("delete from region_info ");
            int rows = DbHelperSQL.ExecuteSql(strSql.ToString());
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }

        /// <summary>
        /// 删除一条数据
        /// </summary>
        public bool Delete(int ID)
        {

            StringBuilder strSql = new StringBuilder();
            strSql.Append("delete from region_info ");
            strSql.Append(" where ID=@ID");
            SqlParameter[] parameters = {
					new SqlParameter("@ID", SqlDbType.Int,4)
};
            parameters[0].Value = ID;

            int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }
        /// <summary>
        /// 批量删除数据
        /// </summary>
        public bool DeleteList(string IDlist)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("delete from region_info ");
            strSql.Append(" where ID in (" + IDlist + ")  ");
            int rows = DbHelperSQL.ExecuteSql(strSql.ToString());
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }


        /// <summary>
        /// 得到一个对象实体
        /// </summary>
        public Taxes.Model.region_info GetModel(int ID)
        {

            StringBuilder strSql = new StringBuilder();
            strSql.Append("select  top 1 ID,region_name,region_value,region_unit_price,in_date from region_info ");
            strSql.Append(" where ID=@ID");
            SqlParameter[] parameters = {
					new SqlParameter("@ID", SqlDbType.Int,4)
};
            parameters[0].Value = ID;

            Taxes.Model.region_info model = new Taxes.Model.region_info();
            DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
            if (ds.Tables[0].Rows.Count > 0)
            {
                if (ds.Tables[0].Rows[0]["ID"] != null && ds.Tables[0].Rows[0]["ID"].ToString() != "")
                {
                    model.ID = int.Parse(ds.Tables[0].Rows[0]["ID"].ToString());
                }
                if (ds.Tables[0].Rows[0]["region_name"] != null && ds.Tables[0].Rows[0]["region_name"].ToString() != "")
                {
                    model.region_name = ds.Tables[0].Rows[0]["region_name"].ToString();
                }
                if (ds.Tables[0].Rows[0]["region_value"] != null && ds.Tables[0].Rows[0]["region_value"].ToString() != "")
                {
                    model.region_value = ds.Tables[0].Rows[0]["region_value"].ToString();
                }
                if (ds.Tables[0].Rows[0]["region_unit_price"] != null && ds.Tables[0].Rows[0]["region_unit_price"].ToString() != "")
                {
                    model.region_unit_price = decimal.Parse(ds.Tables[0].Rows[0]["region_unit_price"].ToString());
                }
                if (ds.Tables[0].Rows[0]["in_date"] != null && ds.Tables[0].Rows[0]["in_date"].ToString() != "")
                {
                    model.in_date = DateTime.Parse(ds.Tables[0].Rows[0]["in_date"].ToString());
                }
                return model;
            }
            else
            {
                return null;
            }
        }

        /// <summary>
        /// 获得数据列表
        /// </summary>
        public DataSet GetList(string strWhere)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select ID,region_name,region_value,region_unit_price,in_date ");
            strSql.Append(" FROM region_info ");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }
            return DbHelperSQL.Query(strSql.ToString());
        }

        /// <summary>
        /// 获得前几行数据
        /// </summary>
        public DataSet GetList(int Top, string strWhere, string filedOrder)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select ");
            if (Top > 0)
            {
                strSql.Append(" top " + Top.ToString());
            }
            strSql.Append(" ID,region_name,region_value,region_unit_price,in_date ");
            strSql.Append(" FROM region_info ");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }
            strSql.Append(" order by " + filedOrder);
            return DbHelperSQL.Query(strSql.ToString());
        }

        
        #endregion  Method
    }
}

